Suggested modules should include "jdk.localedata" when required

[hansi-b]

It seems the suggested modules do not include jdk.localedata when a non-US locale is used in the code.

The following example uses a German locale to correctly parse decimal numbers:

https://github.com/hansi-b/JpackageLocaleTest/blob/master/app/src/main/java/loc_test/App.java

If you run the suggestModules task for that project, it only lists jdk.base (and the resulting jpackaged application prints the wrong values, using the US locale). If you explicitly add jdk.localedata via build.gradle, it works.

This can introduce puzzling behaviour in an application (see https://stackoverflow.com/questions/70009017); might it be possible to have a heuristic to suggest jdk.localedata when a non-US locale is used?

[hakanai]

Tricky... but I sort of agree.